Boundary layer MHD flow of a viscoelastic fluid over a porous quadratic stretching sheet

• Autorzy: Khan S. K.
• Języki publikacji: EN

Abstrakty

EN

A mathematical analysis on the boundary layer MHD flow of a viscoelastic fluid over a porous stretching sheet has been presented in this paper. A typical choice of quadratic stretching of the boundary, which generates a quadratic part in velocity parallel to the boundary sheet and a linear mass flux part in the velocity normal to the stretching sheet, has been assumed. Streamline patterns and skin friction coefficients are discussed for various values of nondimensional physical parameters. The result of the analysis reveals that the combined effect of the non-dimensional viscoelastic parameter and Hartmann number is to increase significantly the values of skin friction coefficient, whereas, the combined effect of the nondimensional constant mass flux parameter and modified linear mass flux parameter is to reduce largely the values of skin friction coefficient. For positive values of the linear mass flux parameter the stream functions attain a positive slope away from the origin while they attain a negative slope everywhere for zero value. The limiting cases of our results yield the results of Andersson (1992) and Kumaran and Ramanaiah (1996).

Słowa kluczowe

EN

viscoelastic fluid; quadratic stretching; MHD flow; stream function; skin friction

PL

teoria sprężystości; płyn lepkosprężysty; przepływ MHD

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2005
• Tom: Vol. 10, no 2
• Strony: 267--279
• Opis fizyczny: Bibliogr. 30 poz., tab., wykr.

Twórcy

autor

Khan S. K.

• Department of Mathematics Gulbarga University Gulbarga-585 106 Karnataka, INDIA

Bibliografia

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